Selvage-trimming mechanism



July 8, 1930. H. H. BURDETT 1,770,366

SELVAGE 'rnmmme uacrmmsu Filed May 9, 1928 Fig. 1.

Inventor. Horace H. Burdefi byIAH M HM Afi'ys Patented July 8, 1930 pa @STMES E i in HORACE H. Burmnrr, or rrornnann, MASSACHUSETTS,'ASS1GNOR ro DRAPER con.- POR-ATION, or HOPEDALE, MAssAoHUs 'rrs',-a,coaroaa'rroiv or MAINE snrivaen-rnrmmrrzremncnanrsivr 1 Application filed May 9, 1922. Se n Name r19.

This invention relates'toa mechanism for trimming ofi close to the selvage the filling ends left projecting therefrom during the weaving operation. Such ends occur particularly as a result of the operation of the automatic fillingreplenishing' loom wherein each time the filling is" changed or replenished, both the dischargedfilling carrier and the fresh filling carrier leave ends projecting at the selvage which must be removed. The mechanism commonly employed for trimming on these endsis usually combined with the temple and located beyond the end of the cloth engaging roll of thetemple. Consequently these ends are not severed close to the selvage and, especially in the case of the finer grades of cloth, have to be further removed by subsequent operations,-

It is the object of the present invent-ionto provide filling cutting mechanism having its to the selvage.

It is the object of the invention further to provide a selva e trimming mechanism which shall have its'field of action closeto the s'elvage;

' ting elements shall be yieldingly maintained against the selvage so as to insure severing the ends closeto the selvage under all condi tions. L

These and other objects and features of cutting temple. field or action located in the rear of the temple It is the object of the invention furtherto the invention will appear more fully from p the accompanying description and drawings As the'invention applicable to alltypes of looms and is concerned'only with the severing of theffilling ends at the selvage, it is only necessary hereto illustrate and describe a preferred form of the invention and those parts immediately associatedtherewith. In

its broader aspect the mechanism may be carried by any suitable support, but in the preferred form the'shankof anordinary temple is utilized as such a support So also the cuttin mechanism may periodically operated by any suitable means, but is here illustrated as conveniently operated by the movement of the lay of the lopm, as in the case of the cutting mechanism usually embodied in a thread In the drawings: p l Fig. 1 is a top plan'view of an ordinary type 'of'temple with a preferred form of the invention supportedthereby, all shown in position in relation" to apiece of cloth being woven inaloom)v Fig. 2 is a'side'elevation'iof the construction shown in Fig. 1 with the lay of a loom indicated in dotted lines.

Fig. 3 is a detail chiefly in transverse cros section on the line 3-3 of Fig. 2..

Fig. 4 is'a perspective view of a portion of the construction looking fromthe rear and showing a filling end in position to be severed.

shank of an ordinary temple for that purposeand the invention in some of its features and supported by some portion of the loom frame, such as the breast beam. This stand extends rearwardly adj acent-the edge of the clothbeing woven. Theshank '3 of the temple-is mounted to slide in the stand being pressed rearwardly by a spring, not shown,

in the stand, and moved forward slightly .upon the beat-up by the lay .4 striking against VJhile,-'as already noted, a mechanism of i; this invention may be mounted on any suitable support, it is convenientto utilize the and'wi'll be particularly pointed out in'the claims.

a heel 5 depending from the stand. At its rearward end the shank is formed into or supports the transversely extending head 6 1n which is journalled the usual temple roll 7,

here shown of the pin type, which acts to maintain the width of the cloth as it is woven. The temple head embraces the cloth directly forward of the fell 8 and straddles the selvage 9 of the cloth.

In the form of the invention here illustrated, the shank 3 of the temple which forms the support has mounted therein a laterally extending rod 10 which extends just forward of the temple head 6 above the plane of the cloth. Forward of this rod the shank 3 is provided with a laterally extending hub 11 forming. a bearing and in this bearing a shaft-12;is mounted both to slide and rotate.

The cutting mechanism comprises a pair of cooperatingcutter blades which operate in a plane substantially normal to the path of the cloth andwhich stand substantially parallel to the selvage forward of the fell. In the preferred construction, one of these blades, herein referred to as the main blade, has no movement during. the cutting operation, while the. other of these blades, herein referred to-asthe movable blade, is moved or rocked relatively to the main blade to effect the cutting operation.

The main cutterblade is shown as a metal plate .13 recessed at its bottom edge to fit over the temple head and present its effective or cuttiiigzedgc just forward of the fell and just rearward of the temple head, while its body portion is supported by the rod 10 and shaft 12. As illustrated, this plate 13v has rigidly secured: thereto and projecting laterally therefrom a hub 14 fitting the rod 10. Forward of this hub the plate'13 is apertured to fit over a cap 15 mounted on the end of the shaft 12. At its rear end the plate 13 is formed into a narrow vertical finger 16 adapted to rest against the edge 9 of the cloth and presents a notch 17 in the plane of the cloth to receive the filling end 18 as the cloth advances in the weaving operation. The-cutting edge of the blade 13 is presented at the edge of this notch.

The movable cutter blade 19 is shown as of generally hook shape. At its rear end it presents a bevelled cutting edge 20 adapted to slide down in close contact with the outer surface of the finger 16 and as it passes across the notch 17 to sever the filling end close to the edge 9 of the cloth. This movable cutter member 19 at its forward end is secured to the shaft 12. For this purpose it is shown as fitting over the shaft 12 and clamped between the shoulder 21 on the shaft and the cap 15,. which is threaded to the end of the shaft. A pin or key 22 also locks it to the sraft 12 so as to insure its partaking of the rotary movement of the shaft.

Suitable means are provided for pressing the cutterblades 13 and 19 together to insure the cutting action. In the construction illustrated, the movable blade 19 has secured thereto and projecting laterally therefrom a stud 23 passing through an arcuate slot 24 in the main blade 13. This stud has mounted thereon a helical spring 25 held in place between washers 26 and 2. the outer of which abuts against a cotter pin 28 in the end of the stud so that the spring acts to press the two blades together.

The blades are opened to receive the filling end, in the case illustrated, by rocking the movable cutter blade 19 upward and for that purpose a spring 29 is shown coiled at its center'about the sleeve 15 and hooked at one endover the hub 14 and at the other end over the stud 23. 'At the latter end the spring 29 is shown as located between the washer 2? and another washer 30. Thus this spring normally acts to elevate the movable cutter blade 19. The cutting operation of the blades which should occur periodically is conveniently secured from the lay at each beat-up and for that purpose the shaft 1 has ad justably secnred thereto, as by the set screw 31, a depending arm 32 extending radially from the shaft into the path of the lay 4. Thus cat each beat-up the shaft 12 is rocked, causing the movable cutter blade 19 to rock downward and effect the cutting operation and then as the lay retracts, the spring rocks the movable cutter member 19 and therewith the shaft 12 and arm in the opposite direction.

An important feature, however, is entire cutting mechanism comprising of cooperating cutter blades such 13 and 19 are positionable, and in the preferred form of the invention position themselves automatically, to maintain the blades close up against the selvage forward of the fell as to sever the ends close to the selvagc. The

cooperating blades are arranged to have a joint movement relative to the support to ward and from the selvage. It will be seen from the illustrative construction alread l scribed that the main blade 13 with its a 14 may be moved laterally on the rod 19.

can in with it the movable cutter blade 19 and the shaft 12, which slides in its bearing in the hub 11. Thus the entire cutting mechanism is readily positioned laterally to bring the finger 16 into contact with the selvage just forward of the fell. This position may be determined manually when desired and the parts will then be locked in place, as, for example, by setting up the set screw to lock the hub 14 to the rod 10. Preferably. however, this positioning of'the blades in the desired relation to the selvage is automatical ly secured by means which act yieldingly to press the finger 16 against the selvage. As a preferred means of securing this result, the inner end of the rod 10 is surrounded by a light helical spring 134. This spring atits outer end issecured to the hub 14 and atits inner end abuts the end of the rod 10. Thus the spring has aconst'ant tendency to move the cutter blades up. against: and maintain them against the selvag'e of theclotln This spring should be made very lightand is assisted in its function by the shock and jar of the loom. It may be desired to limit the inward movement of the "cutter blades toward the selvage while allowing the blades to move yieldingly outward asthe path of the selvage through-the temple changes slightly.

This result is readily secured by adjusting the arm 32 longitudinally on the shaft 12 sothat it will contact with the hub 11 when the blades are in the desired position.

The operation of the mechanism illustrated.

will be apparent. After the ruling is beaten in, 1f an end is left extending front the selvage it will be carried into the notch 17 and'on the next beat-up thereafter will be severed by the blade 19 close'to the selvage. If the end is held by such a mechanism as the usual filling'clamping and parting mechanism on a shuttle 'feeler, it will shown in Fig. 4 and a notch 35 is-shown in the temple head to assist in positioning such a long end. I

Another important feature of this inven-v tion is that with any type of temple having a roll journalled on an aXis substantially parallel with the fell of the cloth being'wo-w en, the field of action of the cutting mechanism is located in the rear of the roll and between the planes of theends of the roll. The cloth held by the temple roll'unifori'nlyhas its selvage passing around the temple roll and between the ends of the roll. Heretofo're the cutting mechanism operated beyondthe' end of the roll and so could not be brought up close to theselvage. With this invention the field of action ofthe cutting mechanism, since it lies at the rear of the temple roll and between the planesof the ends of the temple roll, is brought up close to the 'selvage, thus enabling the fillingends to be filling ends or trimming the selvage and the usual cutting mechanism employed in'the temple may be-dispensed with. The field of action of the cutting blades may he positioned through a wide range of lateral movement and thus under all conditions be'loca'ted close to the selvage.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent,is:- i

1. Athread cuttmglo'om temple comprising a shank supported from the loom frame,

a head on the shank having a temple roll journalled therein, a pair of cooperating cutter blades extendingin the rear of and adj acent to the temple head in a vertical plane and mounted on the temple forward of'the head fo'rjoint bodily lateral movement with.

respect to the head-and means for effecting the cutting operation of the blades to sever close to the selvage the filling ends extending therefrom.

2. A thread cutting loom temple comprising the construction defined in claim 1, to-

gether with adjustable means for limiting.

the bodily lateral movement of'the blades toward the selvage; i c I A thread cutting loom temple comprising the construction defined in claim 1, to-

gether with means for locking the blades in desired position relatively to the selvage.

4. A thread cutting loom temple comprisin the construction defined inclaim 1, to-

gether with means acting yieldingly tomove the blades laterally toward the selva'ge;

5, A thread cutting loom temple comprising a shank supportedfrom the loom frame,

a head on the shank having a temple roll journalled therein, a laterally extending rod mounted in the shank, a bearing in the shank parallel with the rod, a shaft in said bearing,

a main cutter blade mounted to slide'on the rodand connected to the shaft to slidetherewith and extending at the. rear of and adja cent to the temple head, a movable cutter blade mounted to move laterally with the main cutter blade and held yieldingly thereagainst and. connected to the shaft to slide and rock therewith and means for periodically rocking the shaft to effect the cutting cooperation of the blades.

6. A thread cutting loomtemple comprising a shank supported from the loom. frame, a head on the shankhaving a temple roll journalled therein, alaterally extending rod mounted in the shank, a bearing in the shank parallel with the rod, a shaft in said bearing, a main cutter blademounted to slide on the rod and connected to the shaft to slide 1 j' therewith and extending at the rear of and adjacentto the temple head, a movable cutter blade mounted to move laterally with the main cutter blade and held yieldingly thereagainst and connected to the shaft to slide and rock therewith and an arm extending radially from the shaft int-o thepath of the lay and acting when struck on the beat-up to rockthe shaft and eflect the cutting action of the blades. Y i

7. In a loom, a temple having a temple roll journalled therein on an axis parallel with the fell of the cloth being woven and filling cutting mechanism having its field of action located in the rear of the first roll surface engaged by the cloth in its passage through the temple and betweenthe planes of the ends of the said roll surface whereby the cutting mechanism; may sever close to the selvage filling ends extending from the cloth held'by the temple roll with the selvage passing aroundthe roll and between the ends of the roll.

'8. In a loom, a temple having a temple roll journalled therein on an axis parallel with the fell of the cloth being woven and filling cutting mechanism having itsfield of action located in the rear of the roll and between the planes of the ends of the roll, the said cutting mechanism being bodily movable longitudinally of the roll to enable it to be adjusted close to the selvage of the cloth held by the temple roll with the selvage passing around the roll and between the ends ofthe roll whereby the cutting mechanism will to sever close to the selvage filling ends extending therefrom.

9. In a loom, the construction defined in claim 8, together with means acting yieldingly tomaintain the cutting mechanism against the selvage.

10. In a loom, the construction defined in claim 8, together with means for locking the cutting mechanism in adjusted position.

11. A thread cutting loom temple comprising a head having a temple roll journalled therein, means for supporting the temple head fro-m the loom frame with the axis of the temple roll parallel with the fell of the cloth being woven, a pair of cooperating cutter bladesrextending in the rear of the first roll surface engaged by the cloth in its passage through the temple and between the planesof the ends of the said roll surface and mounted on the temple, whereby the field of action of said blades may be located close to the selvage of the clothheld by the temple roll with the selvage passing around the roll and between the ends of the roll and means for effecting the cutting operation of the blades to sever close to the selvage filling ends extending therefrom.

12. A thread cutting loomtemple comprising the construction defined in claim 11, in which the said cutter blades are mounted on the temple for joint bodily lateral movement longitudinally of the roll to enable the said blades to be adjusted with relation to the sel vage, together with means for locking the blades in desired position relatively to the selvage.

13. Selvage trimming mechanism for looms comprising a support mounted on the loom frame and extending in the vicinity of the selvage forward of the fell, a pair of cooperating cutter blades operating in a plane substantially normal to the path of the cloth and substantially parallel to the selvage forward of the fell and mounted on the support for joint bodily movement with respect to the support toward and from the selvage, means acting yieldingly to 'move the blades toward the selvage a stop adjustable in the direction of such movement for limiting the movement of theblades toward the selvage, and'means for effecting the cutting operation of the blades whereby the blades may be positioned to sever close to the selvage filling ends extending therefrom.

14. Selvage trimming mechanism for looms comprising a support mounted on the loom frame and extending in the vicinity of the selvage forward of the fell, a pair of cooperating cutter blades operating in aplane substantially normal to the path of the cloth and substantially parallel to the selvage forward of the fell and mounted on the support for joint bodily movement with respect to the support toward and from the selvage, whereby the blades may be positioned to sever close to the selvage filling ends. extending therefrom, means for locking the blades when positioned in desired relation to the selvage against further joint bodily movement, and means for effecting the cutting operation of the blades.

15. A thread cutting loomtemple compris ing a head having a temple roll journalled therein, means for supporting the temple head from the loom frame with the axis of the temple roll parallelwith the fell of the cloth being woven, a pair of cooperating cutter blades extending in the rear: of the roll and between the planes of the ends of the roll and mounted on the temple for oint bodily lateral movement longitudinally of the roll to enable the said blades tobe adjusted with relation to the selvage, whereby the field of action of said blades may be located. close to the selvage of the cloth held by the temple roll with the selvage passing around the roll and between the ends of the roll, and means for effecting the cutting operation of the blades to sever close to the selvage filling ends extending therefrom.

16. A thread cutting loom temple compris ing a head having a temple roll journalled therein, means for supporting the temple ieadfrom the loom frame with the axis of the temple roll parallel witn the fell of the cloth being woven, a pair of cooperating cutter blades extending in the rear of the roll and between the planes of the ends of the roll and mounted on the temple for joint bodily lateral movement longitudinally of the roll to enable the said blades to be adjusted with relation to the selvage meansacting yieldingly to move the blades toward the selvage, whereby the field of action of said blades may belocated close to the selvage of the cloth held by the temple roll with the selvage passing around the roll and between the ends of'the roll, and means for efiecting the cutting pe'ration of the blades to sever close to the selvage filling ends extending therefrom In testimony whereof, I have signed my name to this specification.

"HORACE H. BURDETT 

